Key result
Tc-99m DTPA aerosol ventilation lung scan showed markedly increased lung clearance, leading to the diagnosis of pigeon breeder's hypersensitivity pneumonitis in a patient suspected of pulmonary embolism.
Case Report (n=1)
Decreased activity on a DTPA ventilation scan may indicate increased lung clearance, which can help diagnose hypersensitivity pneumonitis in patients evaluated for pulmonary embolism.
May aid HP diagnosis in PE evaluations via DTPA clearance; hypothesis-generating case report needing validation.
The authors describe a patient thought to have pulmonary embolism. Results of a perfusion scan were normal, but Tc-99m DTPA aerosol ventilation lung scan showed, in successive views, decreased activity of the deposited aerosol. The lung Tc-99m DTPA clearance was measured and was markedly increased. This suggested possible hypersensitivity pneumonitis, which was later confirmed as pigeon breeder's disease. The decreased activity observed on the DTPA ventilation scan must be directed toward increased lung clearance and its measurement.
No takes yet. Share an insight, caveat, or question.
Kolesnikov-Gauthier et al. (2000) conducted a case report in Pigeon breeder's hypersensitivity pneumonitis (n=1). Tc-99m DTPA aerosol ventilation lung scan was evaluated on Lung Tc-99m DTPA clearance. Tc-99m DTPA aerosol ventilation lung scan showed markedly increased lung clearance, leading to the diagnosis of pigeon breeder's hypersensitivity pneumonitis in a patient suspected of pulmonary embolism.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: